Truck step



FIG. 1 is a perspective view of the truck step showing our new design;

FIG. 2 is a front view of the truck step of FIG. 1;

FIG. 3 is a rear view of the truck step of FIG. 1;

FIG. 4 is a top plan view of the truck step of FIG. 1;

FIG. 5 is a bottom view of the truck step of FIG. 1;

FIG. 6 is a left side view of the truck step of FIG. 1; and,

FIG. 7 is a right side view of the truck step of FIG. 1. 

CLAIM The ornamental design for a truck step, as shown and described. 